A man looks at the electronic ad for Powerball Jackpot of $475 million at the Bluebird Liquor store in Hawthorne, Calif. Thursday, May 16, 2013. The multistate lottery's website said the Powerball drawing jackpot has soared to of at least $550 million for next drawing to be held Saturday.  (AP Photo/Damian Dovarganes)

Powerball jackpot grows to $600 million

Powerball officials say the jackpot has climbed to an estimated $600 million, making it the largest prize in the game’s history and the worl…